Earthwool® Flexible Slab - Knauf Insulation

Earthwool® Flexible Slab - Knauf Insulation

May 2013

Earthwool ® Flexible Slab

For multiple applications


Earthwool Flexible Slab is a multi-purpose, flexible, non-combustible, rock mineral wool

slab specifically designed for installation by friction fitting.


Earthwool Flexible Slab is typically used for the thermal and acoustic insulation of a wide

variety of constructions such as timber and metal stud partitions, timber frame walls and

suspended timber floors.


Earthwool Flexible Slab is manufactured in accordance with BS EN 13162, EN

16001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety

Management Systems, ISO 14001 Environmental Management Systems, and ISO 9001

Quality Management Systems, as certified by Bureau Veritas.



Earthwool Flexible Slab has a thermal

conductivity of 0.035 or 0.037W/mK.


Earthwool Flexible Slab is classified as

Euroclass A1 to BS EN 13501-1.


• Friction fits between studs, joists and


• Provides excellent thermal and acoustic


• Multiple application solution

Earthwool ® Flexible Slab


Earthwool Flexible Slab is odourless, rot proof, non-hygroscopic, does not sustain

vermin and will not encourage the growth of fungi, mould or bacteria.

Vapour resistivity

Earthwool Flexible Slab offers negligible resistance to the passage of water vapour

and has a water vapour resistivity of 5.00MNs/g.m.


Earthwool Flexible Slab represents no known threat to the environment and has zero

Ozone Depletion Potential and zero Global Warming Potential.

Handling and storage

Earthwool Flexible Slab is easy to handle and install, being lightweight and easily cut

to size, where necessary. Earthwool Flexible Slab is supplied in polythene packs which

are designed for short term protection only. For longer term protection on site, the

product should either be stored indoors, or under cover and off the ground. Earthwool

Flexible Slab should not be left permanently exposed to the elements.

Knauf Insulation mineral wool products

made with ECOSE ® Technology benefit

from a formaldehyde-free binder, which

is up to 70% less energy intensive than

traditional binders and is made from

rapidly renewable bio-based materials

instead of petroleum-based chemicals. The

technology has been developed for Knauf

Insulation’s glass and rock mineral wool

products, enhancing their environmental

credentials without affecting the thermal,

acoustic or fire performance. Insulation

products made with ECOSE Technology

contain no dye or artificial colours – the

colour is completely natural.





resistance Length Width Slabs per pack Area per pack

(mm) (W/mK) (m 2 K/W) (mm) (mm) (m 2 )

Earthwool Flexible Slab

140 0.035 4.00 1200 600 3 2.16

140 0.037 3.75 1200 400 4 1.92

100 0.037 2.70 1200 600 5 3.60

100 0.037 2.70 1200 400 6 2.88

90 0.037 2.40 1200 600 5 3.60

70 0.037 1.85 1200 600 8 5.76

60 0.037 1.60 1200 600 8 5.76

60 0.037 1.60 1200 400 10 4.80

50 0.037 1.35 1200 600 10 7.20

50 0.037 1.35 1200 400 12 5.76

All dimensions are nominal

Knauf Insulation Ltd

PO Box 10

Stafford Road

St Helens


WA10 3NS

Customer Service (sales)

Tel: 0844 800 0135

Technical Advice and Support


Tel: 01744 766 666


Tel: 08700 668 660

Ref: KINE1518DAT - V0513

For more information please visit

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was observed when putting together the information, texts and illustrations in this document. Nevertheless, errors cannot quite be ruled out. The publisher and editors cannot assume legal responsibility or any liability

whatever for incorrect information and the consequences thereof. The publisher and editors will be grateful for improvement suggestions and details of errors pointed out.

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